Hinge for davenports or sofa-beds.



LSONTHEIMBR. HINGE FOR DAVENPOBTS 0B. SOFA BEDS.

APPLICATION FILED PHIL-5, 1912.

1,044,280. Patented Nov, 12,1912.

2 SHEETS-SHEET 1.

INVEWTUR John, J'orzlfaez'mwr ATTORNEYS J. SONTHEIMER.

HINGE FOR DAVENPORTS 0B SOFA BEDS. APPLICATION FILED IEILE, 1912.

1,044,280. Patented Nov. 12, 1912.

'2 BEBE HEET 2.

M8868 mmvroa wa -z other and locked in their adjusted positions.

HINGE FOR DA VENPOBTS 0B SOFA-FEDS.

Specification of Letters Patent.

' Applicationfiled February 5, 1912. Serial No. 675,449.

To all whom it may concern.

Be it known that I, JOHN SONTHEIMER, a citizen of the United States, anda resident of Lincoln, in the county of Lancaster and State of Nebraska,have inventednew and Improved Hinges for Davenports or Sofa-Beds, ofwhich the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved hingestructure for use with sofa beds adapted to properly con-- nect the seatand back frames and the base, and at-the same time admit of easymanipulation of the front and back in moving the same from one. positionto another.

A further object of the invention is the arrangement of an improvedhinge structure including a pawl designed to be moved pivotally andlongitudinally, and engage a plurality of stops or pins, whereby theseat and back associated with the pawl may be adjusted to any angle inrespect to each In carrying out'these objects, a base of any desiredconstruction is provided which has associated therewith aback and seatframe. The back and seat frames are pivot-- the seat is moved to apredetermined position the pawl is disengaged for permitting the twoframes to act independently in' order that they may be moved so as tooccupy the same horizonal plane.

A practical embodiment of the invention is represented. intheaccompanying drawings forming a .part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews. I

Figure 1 is a side view of a daven ort or sofa bed embodying theinvention; ig. 2 is a longitudinal central vertical section through Fig.1; Fig. 3 is a fragmentary side view of one of the hin es andsurrounding parts of the frame s owing the pawl in its disengagedposition Fig. 4 is an edge view of the structure shown in Fig. 3; Fig. 5is a view similar to Fig. 3, but showing the pawl in its position justprexY-ous to that JOHN SOmEIIER, Q1 LINCOLN, NEBRASKA Patented Nov. 12,1912.

shown in Fig.3; Fig. 6 is a view similar to Y Flg. 3 except that theseat is shown as partiallv lowered and the pawl in an inoperative postion; and Fig.7 is a fragmentary longitudinal vertical section throughthe structure shown in Fig. 1 after the same has been moved to acomplete open position for use as a bed. Y

Referring to the accompanying drawings by numerals, 1 indicates a baseof any usual or preferred form, 2 a seat frame, and 3 a back frame.These frames of course may be made of any shape and size properly actingtogether and for acting as seat frames and back frames, and also asmeans for defining a bed when moved to the position shown in Fig. 7.

A hinge for each side of the frames2 and .iis provided, but as the sameare of identical construction a description of one will suflice forboth. As clearl drawings, the hinge 4. is ormed/ of threemembers,-namely a leaf or plate 5, a leaf 6,and a pintle 7. By means ofthese hinges the frames 2 and 3 are mounted so as to pivot freely inrespect to each other, but are guided and controlled by a I and by linke9 and 10. The link 9 is pivotally connected at 11 to the back 3 and at12' to the rear part of the base 1. The link 10 is j ournaled on thepintle 7 and is pivoted it is desired to turn the frames from theposition shown in Figs. 1 and 2', to the position shown in Fig. 7.

The pawl 8 is pivoted at 14 tothe leaf 5 on the seat 2 and extendssubstantially in a horizontal line toward the rear until the sameengages a stop 15. The stop 15 is connected with an extension of theleaf 6 so that the pawl may hold the back at any desired angle. At therear end the pawl 8 is formed at a slight angle to its general directionand the angle ortion is rovided with a plurality of note cs 16 whic aredesigned to accommodate the stops. It will shown in thepawl 8 be evidentthat any number of notcheslfi may be provided for giving any desiredadand forth movement is necessary in order to permit the pawl to movelongitudinally when the cam surface 18 engages the stop 15, and when thecam surface 19 engages: the stop 20. These camsurfaces engage therespective stops at the same time and by a continued pivotal movement ofthe ,seat the pawl will move longitudinally and finally permit a notch21 to drop over the stop 20. This will lock the pawl 8 in an inoperativeposition, as clearly shown in Fig. 6. This locking of the pawl 8 isnecessary when it is desired to move the back frame 3 and the seat frame2, tothe position shown in Fig. 7. As soon as the frames have reachedapproximately the osition shown 'in Fig. 6, the upper edge 0 the awl 8engages a stop 22 projecting froinlt e leaf 6. This will cause adisenga' ement of the stop 20 from the notch 21.- en this has occurredthe pawl drops downand rests on the smooth surface 23 against the stop15. It remains in this position as long as the seat and back are left inthe osition shown in Fig. 7, but upon a pivot upward movement of theseat 2, the same will slide over the stop 15 until the stop 15 has enaged in some of the notches 16. After this as'occurred the seat 2 maythen be forced downward against the base 1 which will cause the back 3to oveupward to the position shown in Figs. land 2.

Iiioperation, when the device is in the posishown in Figs. 1 and 2, andit is desired toraise the back to a more vertical position, the same maybe done merely by pushing against the back until the same has reachedthe desired perpendicular. If it should be desired to transform thedevice into a bed,

"as shown in Fig. 7, the seat at any desired point, is grasped andraised pivotally to the .i i t position shown in 3, and then loweredtothe position shown in Figs. 6 and 7, Fig. 6 showinlgan intermediateposition. In ade' device from the position shown in Fig. 7, to thatshown in Fig. 1, it is only necessary to raise the back to the desiredan- ,gle and the seat will automatically slide to the rear according tothe degree of angle of the back. By the construction and arrangement ofthe pawl 8 and the associated de-.

vices, the frames 2 and 3 may be adjusted to any desired position bymerely shifting pivotally either the position of the seat or' the back,as occasion may require, the pawl 8 acting automatically. Also by thearrangement of the links 9 and 10 the seat and back frames 2 and 3 aresubstantially evenly balanced so that it will require but little a bedto a device which will act as a chair or daven ort. It wil be noted thatby the use of the links 9 and 10, and'pivot pin, the working of the bine is substantially noiseless. The awl 8 is oosely mounted so that nobind- 'mg will take placeas the same moves from one position to another.

'Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A hinge for sofa beds comprising pivotally connected hinge membersfor attachment to the back frame and seat frame, respectively, of a sofabed, a pivotally mounted pawl connected with the hinge member on saidseat frame, said pawl being formed so as to have a longitudinalmovement, a pin arranged on the hinge member on said back frame, a camextending from said pawl acting on said pin for giving said pawl asubstantially longitudinal movement, locking means engaging said pawlafter the same has been moved longitudinally by said pin for holding thepawl in a locked position, and a stop for disengaging the pawl from saidlocking means.

2. A hinge for sofa beds comprising pivotally connected hinge membersfor attachment to the back' frame and seat frame of a sofa bed, a pawlformed with a slot at one end, a pivotal pin projecting from the hingemember on said seat frame extending.

through said slot whereby. the pawl is permitted a pivotal andlongitudinal movement, said pawl being formed with a locking notch onone side, a lurality of notches on the opposite side an at the endopposite said slot,

and a cam at the end opposites'aid slot, a locking pin projecting fromthe hinge member on the seat frame designed to at certain times engagesaid locking notch, a tpin on the hinge mem er on the back frame orengaging the respective notches on said pawl at the end opposite saidslot and for engaging said cam, said cam being adapted to act on saidlast mentioned pin and cause a longitudinal movement of the pawl wherebysaid locking pin and said locking notch are interlocked, and means onthe hinge member on said back frame for disengaging the pawl from saidlocking pin.

3. A hinge for sofa beds comprising pivotally connected hinge membersfor attachment to the back frame and seat frame, respectively, of thesofa bed, a pawl pivotally mounted on one of said hinge members andengaging the other of said hinge members for locking the said framestogether at an desired angle, said pawl being formed wit a pair of cams,and a notch, means for acting on said cams for moving said pawllongitudinally, one of said last mentioned means being adapted tofitinto said notch upon the return longitudinal movement of said pawl, andmeans engaging saidpawl for releasing'said pawl from the means fittingin said notch. I

4. A hinge for sofa beds comprising pivotally connected hinge membersfor attachment to the back frame and seat frame, respectively, of thesofa bed, a pawl formed with a longitudinal slot, a pin projecting froma hinge member on said seat frame passing through said slot forpivotally supporting said pawl on said last mentioned hinge member, butpermitting a longitudinal movement of the pawl, Sfild' pawl being formedwith a plurality of notches at one end on one side, and a notch on theopposite end to said first mentioned notches, a stop projecting fJOll'la hinge member on said back frame, adapted to engage any of saidplurality of notches, a second pin projecting from the hinge member onsaid seat frame adapted to engage the notch at the opposite end to saidplurality of notches, means for moving said pawl against the action ofgravity in a longitudinal direction until said last mentioned notch hascome opposite said last mentioned stop, whereby said last mentioned stopis permltted to engage said last mentioned notch for holding said pawlframe for forcing said pawl to an operative position.

5. A hinge forsofa beds comprising pivotally connected hinged membersfor attachment to the back frame and seat frame, respectively, of thesofa bed, a awl for looking said hinge members togetii sired angle, saidawl being formed with a slot .at one end, a pluralit 'of notches at theopposite end, a cam at t e notched end of t e pawl and a lockin notchnear the slotted end, a pin projecting from the hinge member on saidseat frame fittin insaid slot for pivotallfyr supporting -'sai pawl, astop projecting om the hinge member on said back frame arranged toengage any of said plurality of notches, and said cam, a stop arrangedto fit into the notch formed in the slotted end of the pawl, said camsurface and said pawl engaging the stop on the hinge member on said backframe, causing a'longitudinal movement of'said pawl for permltting thesame to move into such a 0- er at any de,-

sition as to cause said pawl to be locke in an inoperative position bsaid stop, and means engaging said paw for moving the same to anoperative position.

In testimony whereof Iv have signed my name to this specification in thepresence of two subscribing witnesses. n an inoperative p0s1t1on, andmeans project-mg from the hinge member onsaid back JOHN SONTHEIMER.Witnesses:

D. W. MOSELEY, W. L. GARTEN.

